Cloud encryption protects data by converting it into a form that cannot be understood without the correct keys. It can protect data at rest, in transit, and sometimes while being processed.
Where encryption is used
Cloud encryption can apply to storage, databases, backups, network traffic, secrets, logs, and application data. Key management is often as important as encryption itself.
Encryption and responsibility
Cloud providers may offer encryption features, but customers must configure them correctly and manage access. This is part of the shared responsibility model.
Encryption is a core cloud security layer, not a replacement for good access control.